IDAHO (MT)

Wild Kratts"Polar Bears Don't Dance"
While in the Arctic, Martin and Chris are on a mission to discover how animals move around in different environments. Their new knowledge comes in handy when they discover that Zach Varmitech has kidnapped a Walrus calf and a Polar bear cub. The Wild Kratts team must do what it takes to return the baby animals to their mothers. D

4:30 pm

Cyberchase"A Perfect Score"
While enjoying a little R & R in Solaria, Hacker is delighted to see Wicked, who is also on vacation-but she's not alone! She's partnered with Nug Grommet, the handsome cyber-surfing champion in a dance contest. Turning even greener with jealousy, Hacker enters the contest to prove his superiority. Only there's one small problem-who can he coerce into being his partner? Enter the CyberSquad. D

5:00 pm

Fetch! With Ruff Ruffman"The Dogvinci Code"
Ruff's Uncle MacRuffmantosh is back, and there's no time to waste - a new mystery must be solved and the FETCHers are on the case!. D

5:30 pm

Nightly Business Report
Tonight on Nightly Business Report, shares of Coke fell after the company said sales were soft. Why aren't investors thirsty for the world's largest beverage maker? And, home builder sentiment drops just as the unofficial start to the spring selling season gets underway. Is it a bad sign for the housing market?. D

Grand Coulee Dam: American Experience
Grand Coulee was more than a dam; it was a proclamation. In the wake of the Great Depression, America turned from private enterprise to public works - not simply to provide jobs, but to restore faith. The ultimate expression of Franklin Roosevelt's New Deal, Grand Coulee played a central role in transforming the Northwest; it was the largest hydroelectric power producing facility in the world when it was completed in March 1941.G

8:00 pm

Pain, Pus and Poison"Pus"
Infection can take over the entire human body to the point of death, while infectious disease has regularly wiped out millions of people worldwide. Dr. Michael Mosley explores the earliest attempts to tackle infection to tell the story of how scientists, chemists and doctors help win the battle from Louis Pasteur to Howard Florey. He shows how a small dedicated team wipes out one of mankind's deadliest diseases - smallpox. Part 2 of 3G

9:00 pm

The Rise and Fall of Penn Station: American Experience
In 1910, the Pennsylvania Railroad accomplished the enormous engineering feat of building tunnels under New York City's Hudson and East rivers. The tunnels terminated in what was one of the greatest architectural achievements of its time, Pennsylvania Station. Inspired by the Roman baths of Caracalla, Penn Station covered nearly 8 acres and housed one of the largest public spaces in the world, only to be torn down a few decades later. This film examines some of the reasons behind the station's demise.G

10:00 pm

Frontline"Generation Like"
Author and correspondent Douglas Rushkoff ("The Merchants of Cool," "The Persuaders") explores how the perennial teen quest for identity and connection has migrated to social media. He explores the game of cat-and-mouse that corporations are playing with young consumers, examining the evolving and complicated relationship between teens and the companies that target them.G